Like Dominik mentionned, it really needs a restart button !
I found the second camera angle where you're on the rocket a lot easier than the other. I was able to reach the last island (i think ?) but did not find what I was supposed to do after.
Here's a few thinkgs you could do to improve the feel of the game :
- Add a trail to the rocket
- Add Sounds (maybe even from the potato to give it more character)
- Add some feedback when you pickup the fuel
- Add some screen effects to give the feeling of speed
Good job on the jam !